salvo.jesus.graph.visual

Class VisualVertex

java.lang.Object

salvo.jesus.graph.visual.AbstractVisualGraphComponent

salvo.jesus.graph.visual.VisualVertex

All Implemented Interfaces:

Serializable, VisualGraphComponent

public class VisualVertex
extends AbstractVisualGraphComponent

The VisualVertex class encapsulates a Vertex with attributes used for visual rendering of the vertex.

Author:

Jesus M. Salvo Jr.

See Also:

Serialized Form

Constructor Summary

Constructors

Constructor and Description
VisualVertex(Vertex vertex, Font f, VisualGraph vGraph) Creates a new VisualVertex object that encapsulates the given Vertex object using the Font specified to draw the string inside the VisualVertex.
VisualVertex(Vertex vertex, Shape shape, Color c, Color bgcolor, Font f, VisualGraph vGraph) Creates a new VisualVertex object that encapsulates the given Vertex object with the given visual attributes.
VisualVertex(Vertex vertex, VisualGraph vGraph) Creates a new VisualVertex object that encapsulates the given Vertex object This defaults the font to Lucida Sans, the outline color to black and the fill or background colot to Color( 0, 255, 255 ).

Method Summary

Modifier and Type	Method and Description
boolean	contains(double x, double y) Tests if the coordinate is inside the VisualVertex's shape.
Vertex	getVertex() Returns the Vertex that VisualVertex encapsulates.
void	paint(Graphics2D g2d) Draw the VisualVertex with the specified 2D graphics context.
void	rescale() Forces a rescale of the internal shape used to represent VisualVertex.
void	setGeneralPath(GeneralPath path) Sets geometry used to draw the VisualVertex.
void	setLocation(double x, double y)
void	setLocation(int x, int y) Moves the location of the VisualVertex to the new coordinate.
void	setLocationDelta(double dx, double dy)
void	setLocationDelta(int dx, int dy) Moves the location of the VisualVertex' shape by the specified delta values.
void	setVertex(Vertex vertex) Sets the vertex that the VisualVertex encapsulates.
String	toString() Wrapper method that simply returns this.displaytext.

Methods inherited from class salvo.jesus.graph.visual.AbstractVisualGraphComponent

addMouseListener, addMouseMotionListener, getBounds, getBounds2D, getFillcolor, getFont, getFontcolor, getFontMetrics, getGeneralPath, getLabel, getOutlinecolor, getPainter, getVisualGraph, processKeyEvent, processMouseEvent, processMouseMotionEvent, removeMouseListener, removeMouseMotionListener, setFillcolor, setFont, setFontcolor, setGeneralPath, setLabel, setOutlinecolor, setPainter

Methods inherited from class java.lang.Object

clone, equals, finalize, getClass, hashCode, notify, notifyAll, wait, wait, wait

Constructor Detail

VisualVertex

public VisualVertex(Vertex vertex,
                    VisualGraph vGraph)

Creates a new VisualVertex object that encapsulates the given Vertex object This defaults the font to Lucida Sans, the outline color to black and the fill or background colot to Color( 0, 255, 255 ).

Parameters:

vertex - The Vertex object that the VisualVertex will encapsulate.

VisualVertex

public VisualVertex(Vertex vertex,
                    Font f,
                    VisualGraph vGraph)

Creates a new VisualVertex object that encapsulates the given Vertex object using the Font specified to draw the string inside the VisualVertex.

Parameters:

vertex - The Vertex object that the VisualVertex will encapsulate.

f - The font that will be used to draw the String representation of the vertex

VisualVertex

public VisualVertex(Vertex vertex,
                    Shape shape,
                    Color c,
                    Color bgcolor,
                    Font f,
                    VisualGraph vGraph)

Creates a new VisualVertex object that encapsulates the given Vertex object with the given visual attributes.

Parameters:

vertex - The Vertex object that the VisualVertex will encapsulate.

shape - The shape used to render the VisualVertex.

c - The color used to draw the outline of the VisualVertex's shape.

bgcolor - The color used to fill the VisualVertex's shape.

f - The font that will be used to draw the String representation of the vertex

Method Detail

getVertex

public Vertex getVertex()

Returns the Vertex that VisualVertex encapsulates.

Returns:

The Vertex object that the VisualVertex encapsulates.

setGeneralPath

public void setGeneralPath(GeneralPath path)

Sets geometry used to draw the VisualVertex.

Specified by:

setGeneralPath in interface VisualGraphComponent

Overrides:

setGeneralPath in class AbstractVisualGraphComponent

Parameters:

path - A GeneralPath object used to draw the VisualVertex. If the GeneralPath is not a closed polygon, this method will close the path.

setVertex

public void setVertex(Vertex vertex)

Sets the vertex that the VisualVertex encapsulates. The next call to paint() will redraw the string inside the VisualVertex' shape.

Parameters:

vertex - The new Vertex object that VisualVertex encapsulates.

contains

public boolean contains(double x,
                        double y)

Tests if the coordinate is inside the VisualVertex's shape. Do not call this method if paint() has not been called at least once, because the first call to paint() will initialize the shape used to draw the VisualVertex. This method is simply a wrapper on GeneralPath.contains( x, y ).

Parameters:

x - x-coordinate of the point you want to test

y - y-coordinate of the point you want to test

Returns:

True if the x and y coordinate is inside the shape of the VisualVertex.

setLocation

public void setLocation(int x,
                        int y)

Moves the location of the VisualVertex to the new coordinate. Do not call this method if paint() has not been called at least once, because the first call to paint() will initialize the shape used to draw the VisualVertex.

Parameters:

x - The new x-coordinate for the VisualVertex

y - The new y-coordinate for the VisualVertex

setLocation

public void setLocation(double x,
                        double y)

setLocationDelta

public void setLocationDelta(int dx,
                             int dy)

Moves the location of the VisualVertex' shape by the specified delta values. Do not call this method if paint() has not been called at least once, because the first call to paint() will initialize the shape used to draw the VisualVertex. This method is simply a wrapper on Rectangle.translate( x, y ).

Parameters:

x - The delta x-coordinate for the VisualVertex

y - The delta y-coordinate for the VisualVertex

setLocationDelta

public void setLocationDelta(double dx,
                             double dy)

toString

public String toString()

Wrapper method that simply returns this.displaytext.

Specified by:

toString in interface VisualGraphComponent

Overrides:

toString in class Object

Returns:

Display string of the VisualVertex object

paint

public void paint(Graphics2D g2d)

Draw the VisualVertex with the specified 2D graphics context. Each call to this method will draw the fill color, the outline color, and the string inside the shape, in that order.

Parameters:

g2d - The Graphics2D graphics context object used to draw the VisualVertex.

rescale

public void rescale()

Forces a rescale of the internal shape used to represent VisualVertex.